Radiator



W. R. HILDEBRAND.

RADIATOR.

APPLICAT10N FILED APR. 18. 1918.

1 85,450. Patented July 26, 1921.

WITNESS INVENTOR.

WW- ATTORNEY UNITED STATES PATENT OFFICE.

R'ADIATOit.

Specification of Letters Patent.

Patented July 26*, 1921.

Application filed April 18, 1918. Serial No. 229,302.

To all whom it may concern Be it known that I, IVILLIAM IIILDE- BRAND, a citizen of the United States, residing at Chicago, in the county of (look and State of Illinois, have invented certain new and useful Improvements in Radiators, of which the following is a specification.

My invention relates to heating devices and its objects are to economize fuel, to effect circulation of warm air and improve ventilation, and to reduce the time required to heat a room or apartment after heat has been turned on. With these general objects in view my invention consists in the novel air-heating and air-circulating radiator hereinafter described in detail, illustrated in the accompanying drawing and more particularly pointed out in the appended claims.

In the drawing Figure 1 is a vertical and longitudinal section of a plurality of sections of a radiator embodying my invention, taken substantially on the line XX of Fig. 2 with one section added.

Fi 2 is a section taken substantially on the line YY of Fig. 1.

Fig. 3 is a section taken substantially on the line ZZ of Fig. 1.

Fig. 4 is a section on a reduced scale taken substantially on the line 0-0 of Fig. 1.v

In the several views 2, 3 and 4 represent substantially ordinary radiator sections adapted for either steam or hot water as the heating element, and 5 and 6 represent airheating sections that are inserted between the ordinary radiator sections. In general configuration, size and appearance all of the sections 2 to 6 are substantially alike, are adapted to be coupled up with the usual steam', hot water, or other heating fluid pipes, and to be installed wherever existing radiators are in service. The difference be tween the sections 2, 3 and 4 on the one hand and the sections 5 and 6 on the other is confined ,to interior arrangements and to the circulation of the heating element and of the air. From one section 2, 3 and 4 to another, the steam, hot water and the like is circulated in the usual manner with the eXception that the steam or water passage from one to the other passes through one or more sections 5 or 6. The latter are air sections, each of which, in the present embodiment, is substantially independent of the other. Each has its own cold air inlet and heated air outlet, but an air-supply pipe common to all of the cold air inlets for sections 5 and. 6 passes through all of the sections 2 to 6 and has a side opening for each section 5 and 6.

Like ordinary steam radiator sections my improved radiator sections are cast with integral hubs or flanges which are joined fluidtight end to end to form a conduit through all of the sections. In the ordinary radiator this conduit usually passes horizontally through the lower ends of the sections. In the present construction this steam or heating liuid conduit passes through the sections n like manner and another substantially snmlar conduit for air passes through the upper portions of thevsections and, so far as exterior appearance is concerned, serve there in the same capacity as the usual spacmg lugs between upper ends of ordinary sections. The air conduit provided by the referred to air-passage sections is indicated by the numeral '7 in Figs. 1, 2 and 3, the sections forming the passage 7 being substantially alike save for a side opening in the conduit as a whole opposite each section 5 and 6. These side openings are labeled 8, 8 and admit air from the common sup-ply air passage 7 into the air-heating and circulation sections 5 and 6.

From the lateral opening 8 in each instance the cold air falls downwardly on one side of the usual radiator-section hollow wall 9 which divides the ordinary radiator section into two spaces, and through which passes the usual long bolts or rods 10 and 11 with nuts 12, 13, 14 and 15 threaded on their ends and by means of which all the sections are, in the usual manner, clamped together to form a single member or radiator. The two spaces referred to are separately indicated by, respectively, the numerals 22 and 23 for the air sections and by the numerals 20 and 21 for the steam sections. The steam passage through the lower ends of all of the said double-space radiator sections is arranged a little above the bottoms of said spaces. Hence the cold air descending in the space 23 passes under the steam passage which is indicated by the numeral 19, and after being heated rises in the space 22 as clearly shown in Fig. 3. From the latter space an outlet 8 on each side of the radiator section 5 or 6 is provided immediately above the air passage 7 The sections for the transverse steam passage are indicated by the numerals 18 and 19, the former being parts of the steam sections and the latter being parts of the air sections 5 and 6. Instead of letting the steam passage discharge directly into both sections and 21 of? each radiator section and pack the steam therein, I have shown the steam sections 2, 3 and 4 provided with means for causing the steam to move therethroughin the same manner as the air moves through the spaces 23 and 22, but in the opposite direction, and to pass over the air passage 7 on the return lap or leg of move ment. For this purpose I have in each section of steam passage 18 provided an. inclined division wall 17 arranged to cause the steam to move upwardly over the upper side of said wall in the space 21, and thence downwardly in the space 20 and'under the wall 17 into the steam passage section 19 which; conducts the steam across the air sec- .tion 5 to the next steam section 3, and so on to any desired extent as to the number of sections of which the radiator may be composed. The steam supply pipe coupled onto the usual radiator is indicated by the section of pipe 16 and a similar pipe connection which may lead, if desired, from the air outside of a building, is indicated by the numeral 26. The opposite end of the passage 7 is closed by a screw plug 27, or otherwise. In the air-heating sections 5 and 6 the spaces 22 and 23 are separated from each other. between inlet and outlet to and from said spaces, by a wall 24 which extends from each air section of passage 7 to the outer wall 25- of the space 23. Thus the incoming cold air is met, as it were, by a flow of steam moving in the opposite direction. The steam heats the air-supply passage during both upward and downward movement in each steam section and heats the spaces 22 and 23 in the air sections 5 and. 6 while crossing from one steam section to another. Thus the supply of air is heated on its way to a radiator air section, is again heated within the section at its bottom end and is exposed throughout the entire length of its travel in the air section by the Walls heated from the walls of the hot steam sections.

It is thought that every air unit in a radiator of this type saves a coal unit, or heating section. The air-heating sections distribute the heat more quickly and evenly than the closed metal rediator. On cold days the heating of the ordinary radiator must usually be started hours before the desired temperature is obtained, because the radiator must be first super-heated to the point of metal radiation. In the summer time the air-heating sections are adapted to serve as ventilators and to be provided with valve controlled inlets for that purpose. Thus my improved radiator will not be a dead radiator throughout any part of the year. The greater the difference in temperature between the air drawn into the airheating units and the heat in the heating units, the greater the air-suction and ex pulsion of heated air.

I claim as my invention 1. In a radiator composed of sections, the combination of aheating section with an air-section, said air-section having an airspace with an inlet thereto and an outlet therefrom and the heating section having a heating chamber to which said air-space is exposed.

2'. The combination in a radiator of alternate heating and air sections with an airpassage and a heating fluid passage passing through said sections, said air passage communicating with said air sections and said heating fluid passage communicating with said heating sections, and said airsection passages having outlets therefrom open tothe outer air.

3. The combination with a series'of heating sections, of substantially similar air sec tions having air inlets and air-outlets'thereinto and therefrom, all of said air-inlets and air-outlets having a common air inlet.

4. The combination in a radiator, of a series of heating sections alternating with a series of air sections, the heating sectionshaving a passage which is continuous therethrough and through said air sections, and the air sections having individual inlet and outlet openings to and from their interiors.

5. The combination in a radiator,'ofalternate heating and air sections, a conduit through the heating sections which crosses said air sections, said air sections having an air conduit communicating therewith and crossing said heating sections. r

6. The combination with heating sections of air sections, all substantially alike in ex terior contour, means for heating said air sections by said heatingv sections, and separate inlets and outlets for the air sections.

In testimony whereof I have hereunto subscribed my name. 

